VIDEO: Brenda Vs. Kelly On Beverly Hills, 90210

Happy 9-02-10 day!

In honor of this momentous occasion, we've pulled a classic '90s clip from the beloved O.G. Beverly Hills, 90210 series.

Of course, it features one of the best love triangles ever to have graced primetime television: Brenda-Dylan-Kelly.

When Brenda catches her ex-boyfriend with her best friend, she unleashes an infamous tirade on poor Kelly: "If it walks like a duck, and talks like a duck..."